Believe it or not, they wouldn’t even charge celebrities for the tanks they built them. I took a tour of their facility and they make it very well known that their ratings were failing after just documenting tanks built for random clients. Once they started building for celebrities, their reviews skyrocketed and saved the show from going under. So as an incentive to have celebs agree to owning tanks, they build and install tanks for free. They were making enough off the show to support this as marketing costs. Once the tank is installed, they work out a maintenance schedule with the celebrity’s LFS to come maintain the tanks for them. No prior knowledge necessary.